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Ram and Shyam can finish a task in 6 days working together. Shyam can finish that task alone in 8 days. How much time will Ram alone take to finish it
Question

Ram and Shyam can finish a task in 6 days working together. Shyam can finish that task alone in 8 days. How much time will Ram alone take to finish it?

A.

15 days

B.

12 days

C.

18 days

D.

24 days

Correct option is D

Given: 
Ram and Shyam can together finish a work in 6 days.
Shyam alone can finish the same work in 8 days.  
Formula Used: 
Efficiency = Total WorkTime\frac{\text{Total Work}}{\text{Time}}​​
Solution: 
LCM of 6 , 8 = 24 
So, 

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